Home / 30,983.27-42,756.80-17,557.09

Finding the Fourth Proportional to 30,983.27, 42,756.80 and 17,557.09

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Solution

The fourth proportional to 30,983.27, 42,756.80 and 17,557.09 is: 24,228.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,983.27 : 42,756.80 = 17,557.09 : x
  2. Step 2: Convert to fraction form
    30,983.27/42,756.80 = 17,557.09/x
  3. Step 3: Cross multiply
    30,983.27x = 42,756.80 × 17,557.09
  4. Step 4: Simplify right side
    30,983.27x = 750,684,880.50
  5. Step 5: Solve for x
    x = 750,684,880.50/30,983.27
  6. Step 6: Final answer
    x = 24,228.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.